Question: When did Las Palmas de Gran Canaria have a population of 383050.0?
Paraphrase: What date did Las Palmas de Gran Canaria have a population of 383,050?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q11974 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '383050.0')) . ?s pq:P585 ?value}